<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Document</title>
</head>

<body>
  <div id="app">
    <h1>简单计算器</h1>
    <div>
      <span>数值A：</span>
      <span>
        <input type="text" v-model="num" />
      </span>
    </div>
    <div>
      <span>数值B：</span>
      <span>
        <input type="text" v-model="num1" />
      </span>
    </div>
    <div>
      <button @click="handle">计算</button>
    </div>
    <div>
      <span>计算结果：</span>
      <span>{{result}}</span>
    </div>
  </div>
  <script src="./vue.js"></script>
  <script>
    var vm = new Vue({
      el: "#app",
      data: {
        num: "",
        num1: "",
        result: "",
      },
      methods: {
        handle() {
          this.result = parseInt(this.num) + parseInt(this.num1);
        },
      },
    });
  </script>
</body>

</html>